CN201557239U

CN201557239U - Plane sound box

Info

Publication number: CN201557239U
Application number: CN200920206068XU
Authority: CN
Inventors: 黄安福
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-20
Filing date: 2009-10-20
Publication date: 2010-08-18
Anticipated expiration: 2019-10-20

Abstract

The utility model provides a plane sound box. The plane sound box comprises a box body, a high-pitch loudspeaker, an alto sound plate, and a bass sound plate, wherein a separation board separates the box body into a closed left-side space and a right-side space; the alto sound plate is fixedly arranged in the left-side space; the bass sound plate is fixedly arranged in the right-side space; the right-side space is also communicated with the left-side space through a first pipeline; and the high-pitch loudspeaker is fixedly arranged on the side surface of the box body. The plane sound box provided by the utility model has the advantages that the alto sound plate and the bass sound plate are separated with each other, and the back space (namely the right-side space) of the bass sound plate is led into the back space (namely the left-side space) of the alto sound plate, so that the side surface of the right-side space is enlarged by more than 6 cm to form a resonance cavity and mellow bass can be caused.

Description

A kind of plat sound box

Technical field

The utility model relates to the audio amplifier technical field, and particularly a kind of thickness is lower than the casing of 6cm and realizes resonator, can send mellow in a low voice with the plat sound box of bass.

Background technology

Flat panel loudspeaker (Flat speaker) has another name called dynamic planar loudspeakers, dull and stereotyped artistic audio amplifier, mural painting sound equipment or Ultrathin speaker.As shown in Figure 1, the audio amplifier that the prior art provides comprises sound box 10, is installed in electromagnetic type exciter 11 and plane phonation board 12 in the described sound box 10, and described plane phonation board 12 is installed on the sound box 10 by suspension 13.It is exactly that low frequency is too poor that the flat panel loudspeaker technology that prior art provides has fatal defective always, and main cause has following 2 points:

The low frequency that one, electromagnetic type exciter excitation plane phonation board produce is undesirable, does not have low frequency in other words fully; Its advantage intermediate frequency is fabulous, and the low frequency ranges of primitive technology can only reach 200Hz, can reach 68Hz at present by the improvement to exciter and phonation board material, but tone color and range still can not satisfy consumer's ear.

Two, the space is less in the flat panel loudspeaker body structure, general space about 2cm, because of the space little, according to the wave length of sound characteristic, and want enable voice to form sympathetic response, the sound box space must be more than 6cm, and flat panel loudspeaker sound can't form sympathetic response so, thereby the hearer can't hear mellow bass.

The utility model content

The utility model provides a kind of plat sound box that can produce mellow bass in the sound box space that thickness is lower than 6cm.

To achieve these goals, the utility model provides following technical scheme:

A kind of plat sound box, it comprises casing, loudspeaker, middle pitch phonation board and bass phonation board, a division board is isolated into described casing the leftward space and the rightward space of sealing;

Described middle pitch phonation board is fixedly installed on described leftward space, and described bass phonation board is fixedly installed on described rightward space, and rightward space also is communicated to described leftward space by pipeline, and described loudspeaker is fixedly installed on described casing side.

Wherein, preferred, also be provided with sound inverted hole on the wall of described rightward space.

Wherein, preferred, described rightward space also is communicated with seal case by second pipeline.

Wherein, preferred, described first pipeline is two.

Wherein, preferred, the length of described first pipeline is 1/4th of described leftward space width.

Wherein, preferred, be equiped with acoustical cotton in described first pipeline.

Wherein, preferred, described middle pitch phonation board is provided with middle pitch electromagnetic type exciter, and described bass phonation board is provided with bass electromagnetic type exciter.

Wherein, preferred, described loudspeaker is installed in the casing side.

The utility model technique effect, the utility model provides plat sound box that middle pitch phonation board and bass phonation board are kept apart, and the space, back (both leftward space) of space, bass phonation board back (both rightward space) being introduced the middle pitch phonation board by pipeline, therefore allow rightward space enlarge more than 6cm to the side, thereby the formation resonator can produce mellow bass.

Description of drawings

The plat sound box structural representation that Fig. 1 provides for prior art;

Fig. 2 is the structural representation of the utility model embodiment one;

Fig. 3 is the structural representation of the utility model embodiment two.

Embodiment

In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.

Embodiment one: a kind of plat sound box, as shown in Figure 2, it comprises casing 100, is installed in frequency divider (not drawing among the figure), loudspeaker 302, middle pitch phonation board 200 and bass phonation board 300 in the described casing 100, described middle pitch phonation board 200 is installed in the described casing side by side with described bass phonation board 300, and a division board 101 is isolated into described casing the leftward space and the rightward space of sealing;

Described middle pitch phonation board 200 is fixedly installed on described leftward space, described bass phonation board 300 is fixedly installed on described rightward space, described rightward space also is communicated to described leftward space by first pipeline 301, and described loudspeaker 302 is fixedly installed on the casing side.Preferably, described first pipeline 301 is two, also can be individual for other numbers.Also be provided with sound inverted hole 305 on the wall of described rightward space, prevent that the totally enclosed type sound box from producing resonance.

Embodiment two, and as shown in Figure 3, different with embodiment one is: described rightward space also is communicated with seal chamber 304 by second pipeline 303.

Among above-mentioned two embodiment, preferred, the length of described first pipeline 301 is 1/4th of described leftward space width.Further, in order to prevent mixing of middle pitch and bass, be equiped with acoustical cotton in described first pipeline 301.

In above-mentioned two embodiment, described middle pitch phonation board 200 is provided with middle pitch electromagnetic type exciter, and bass phonation board 300 is provided with bass electromagnetic type exciter.

In the casing of same the foregoing description flat panel loudspeaker, be equiped with the frequency divider (not drawing among the figure) of three frequency division.Adopt frequency divider that high, medium and low audio frequency is effectively distributed, bass frequency division dispensing can send low frequency bass phonation board 300 preferably; The intermediate frequency audio distribution is sent middle pitch middle pitch phonation board 200 preferably, and high pitch is partly distributed to loudspeaker.

More than a kind of plat sound box that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. a plat sound box is characterized in that, comprises casing, loudspeaker, middle pitch phonation board and bass phonation board, and a division board is isolated into described casing the leftward space and the rightward space of sealing;

Described middle pitch phonation board is fixedly installed on described leftward space, and described bass phonation board is fixedly installed on described rightward space, and described rightward space also is communicated to described leftward space by first pipeline, and described loudspeaker is fixedly installed on described casing side.

2. plat sound box according to claim 1 is characterized in that, also is provided with sound inverted hole on the wall of described rightward space.

3. plat sound box according to claim 1 is characterized in that described rightward space also is communicated with seal chamber by second pipeline.

4. as plat sound box as described in claim 2 or 3, it is characterized in that described first pipeline is two.

5. as plat sound box as described in claim 2 or 3, it is characterized in that the length of described first pipeline is 1/4th of described leftward space width.

6. as plat sound box as described in claim 2 or 3, it is characterized in that, be equiped with acoustical cotton in described first pipeline.

7. as plat sound box as described in claim 2 or 3, it is characterized in that described middle pitch phonation board is provided with middle pitch electromagnetic type exciter, described bass phonation board is provided with bass electromagnetic type exciter.